made with a view to investigate its Magnitude , & c. 153 
left it, while d, which is rather more involved than it was 
before, is hardly to be seen. 
7 h 50'. The star a, towards which the comet moves, is in- 
volved in denser nebulosity than before, and is grown fainter. 
d is involved in brighter nebulosity than before, but being 
near the margin, it will soon emerge, 
8 h 35'. Being still more involved, the star a is now hardly 
visible. 
e is quite clear of the tail, and is a considerable star ; d re- 
mains involved. 
9 h io'. The star d is also emerged, but the comet is now 
too low to estimate the brightness of stars properly. 
Nov. 25, 7 h 35'. There is a star a within the light of the 
tail, near the head of the comet, equal to a star b situated 
without the tail, but near enough to be seen in the field of 
view with a. The path of the head of the comet leads towards 
a, and a more intense brightness will come upon it. 
8 h 46' The star a is now involved in the brightness near 
the head of the comet, and is no longer visible, except now 
and then very faintly, by occasional imperfect glimpses ; but 
the star b retains its former light. 
Nebulous appearance of the Comet. 
Dec. 6. The head of the comet, viewed with a mirror of 
24 inches diameter, resembles now one of those nebulae 
which in my catalogues would have been described, “ a very 
large, brilliant, round nebula, suddenly much brighter in 
the middle.” 
Dec. 16. 7-feet reflector. The night being fine, and the 
moon not risen, the comet resembles “ a very bright, large, 
MDCCGVIII. X 
